Upcoming and Recently Launched High-Energy Astrophysics Missions

Athena [ESA} - a large X-ray observatory "offering
spatially-resolved X-ray spectroscopy and deep wide-field X-ray spectral
imaging with performance greatly exceeding that offered by current X-ray
observatories like XMM-Newton and Chandra, or by missions like Hitomi and
SRG/eROSITA". Athena was proposed as a concept for a large effective area
mission for the ESA science program, incorporating a single telescope with a
fixed focal length (12 m) and two interchangeable instruments in the focal
plane, a wide-field imager (WFI) and an X-ray integral field unit (X-IFU),
i.e., an X-ray calorimeter. On Nov 28th, 2013, ESA selected the science theme
"The Hot and Energetic Universe" for its next large satellite mission (L2),
and on Jun 27th, 2014, it selected Athena as the mission for this theme.
NASA is working with ESA to define the possible NASA contribution to this
ESA-led X-ray mission. (To launch in 2028)

Dark Matter Particle Explorer (DAMPE) [China] - satellite for
high-energy gamma-ray, electron and cosmic rays detection - will measure
electrons and photons with much higher energy resolution and energy reach than
achievable with existing space experiments in order to identify possible Dark
Matter signatures, and will also advance the understanding of the origin and
propagation mechanism of high energy cosmic rays, as well make new discoveries
in high energy gamma astronomy. (Launched on December 17, 2015)

Laser Interferometer Space Antenna (LISA) [ESA/NASA] - will be
the first space-based gravitational wave observatory. Selected to be ESA's
third large-class mission (L3), it will address the science theme of the
Gravitational Universe. LISA will consist of three spacecraft separated by
2.5 million km in a triangular formation, following Earth in its orbit around
the Sun. LISA is a collaboration of ESA and NASA. (To launch in 2034)